Combined portable drawing surface and storage supply unit



FIG. 1 is a left front perspective view of a combined portable drawing surface and supply storage unit showing my new design;

FIG. 2 is a left elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a right front perspective view thereof with the working surface in a raised position. 

The ornamental design for a combined portable drawing surface and supply storage unit, as shown and described. 